Wort-cooler



(NO Model.) 2 Sheets-Sheet 1.

H. E. DEGKEBACH.

y WORT COOLER. No. 527,197. Patented Oct. 9, 1894.

(No Model.) 2 sheets-Sheet 2. H. E. DECKEBAH.

WORT COOLER.

. Patented 001;. 9,1894.

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UNTTED STATES PATENT OFFICE.

HENRY E. DECKEBACH, OF CINCINNATI, OHIO.

WORT-COOLER.

SPECIFICATION forming part of Letters Patent No. 527,197, dated October 9, 1894.

Application filed May 19, 1894:.

To all whom it may concern:

Be it known that I, HENRY E. DEcKEBAcH, a citizen of the United States, and a resident of Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Wort- Coolers, of which the following is a specification.

My invention is an improved apparatus for cooling wort after it leaves the boiler and before it reaches the fermenting tuns. Its olo-` ject is a simple compact device arranged to be interposed between the boiler and hop jack, or between the boiler and fermenting tuns when the hop jack is not used, for reducing the temperature of Wort without` allowing its vapors `to escape or the liquid to come in contact with the atmosphere, which is often laden With deleterious germs, spores, microbes, dsc., in its passage from the boiler to the fermenting vessels. By this means, also, the volatile oil of the hops, which imparts t0 malt liquorsits delicate flavor, is not allowed to escape as the liquid is cooled below the temperature at which the oils become volatilized before it leaves the cooling apparatus.

The invention will be first fully described in connection with the accompanying drawings and then particularly referred to and `pointed out in the claims.

Referring to the drawings, in which like parts are represented by similar reference letters wherever they occur throughout the various views: Figure l is a central longitudinal section of the simplest form of my improved apparatus. Fig. 2 is an end elevation of the same. Fig. 3 is a sectional View taken in central longitudinal horizontal section of my apparatus having increased cooling surfaces.

Referring first to the simplest form of my invention, represented in'Figs. l and 2, the outer case, A, is a plain cylinder, having a receiving branch, a, at its forward end to be connected to a discharge pipe (not shown) from the hop jack, and a discharge branch, a', at the opposite end, which is to be connected to a pipe leading to the fermenting tuns. A flanged cast metal ring, a2, is passed over the forward or open end of the cylinder, A, and secured to the cylinder by a brazing, or in any suitable manner.

. Within the cylinder, A, is a cylinder, B, the

Serial No.511,769. `(No model.)

open end of which is secured inatlanged ring, b. The rings, a2 and b, are radially slotted to pass bolts, as, which are pivoted between lugs, a4, which lugs project from the rings, a2. The two rings, a2 and b, are detachably connected by these bolts and the wing nuts, ai. One end of the cylinder, B, is closed by a removable head or disk, b', which is held against the ring, b, by bolts, b2. These bolts also pass through the outwardly projecting flange, c, of the cap, C, and hold it in place.

To the inner end of the cylinder, B, is secured one end of a tube, D, which is spirally coiled around the tube, B, to near its opposite end. The coil, D, terminatesin a straight arm, which passes through the disk, b', and iange, c, and connects with the pipe, C', which pipe connects with the cap, C.

Within the cylinder, B, is a cylinder, E. The inner end of this cylinder is open and rests against the convex end of the cylinder, B. Near the inner end of this cylinder is a series of perforations to communicate with the space between the outer wall of the cylinder, E, and the inner Wall of the cylinder, B. The opposite end of the cylinder, E, is reduced and terminates in a tube, e, which extends centrally through the disk or head, b', and the head or nut of the cap, C. The opening in the cap is provided with a packing gland, c', to prevent leakage around the t tube, e.

y The cooling liquid, from any suitable source, is passed into the cylinder, E, through the tube, e, a portion of it passing into the space between the cylinders, B and E, through the perforations in the end of the cylinder, E, but the main portion passes through the coil, D, and `is discharged into the pipe, C', to be again returned to the source of supply, if desired, in the usual way. i

The Wort passes from the hop jack through the branch, a, thence around the cylinder, B, in a spiral path controlled by the spiral coils of the tube, D, and passes out to the fermenting tuns through the branch, a4. When the hop jack or boiler is a sufficient distance above the cooling apparatus, gravity may be relied upon to carry the wort through t the cooler, but ordinarily an exhaust pump is interposed in the pipe betweenthe cooler and the fermenting tuns.

ICO

When it is desired to cleanse the vessel, the wing nuts, a5, are unscrewed, the bolts swung back, and the tube, e, disconnected from its supply pipe, when the whole apparatus, inside of the cylinder, A, may be removed, and the coil and .the inside of the cylinder, A, thoroughly cleansed. lf it is desired to cleanse the inner cylinders, B and E, the bolts, b2, are removed, when the head or disk, b', with the cylinder, E, may be removed and cleansed. There is a series of perforations, b3, made in thevdisk surrounding the tube, E,

to allow the escape of the cooling liquid into the cap, C, and thence through the tube, C':

desired, and in some cases, where it is desirable to economize space, the apparatus may be placed in a vertical position.

It will be seen that there is no tting required, as the coil, D, supports itself and cylinder, B, in proper position, and the inner cyl- Vinder, E, is Vsupported at its innell end by bearing against the concave end of the cylinder, B. The joints between the rings, a2 and b, and head, b', may be made close by av suitable packing, or by being dressed off true.

The form of my invention shown in Fig. 3 is provided with a double set of cooling coils and cooling jackets, adapted to receive the cooling liquid from two sources of supply, the wort being compelled to travel in a spiral path around both sets of coils and in contact with the cooling surfaces of the double-sets of cylinders. y I

Brieiiy described, there are two jackets or chambers for two sets of coils, with but one continuous passage for the wort in the spiral path around bothsides, practically doubling the cooling capacity of the-apparatus without occupying additional space. The outer cylinder, A', and the inner cylinder, B', areconnected together at their forward ends by hanged rings, as and b4, same as in Fig. l, leaving a jacket Y between the two cylinders for the coil, D'.

Within the cylinder, B', is a cylinder,.G, which has around it a ring, g, which comes opposite a similar ring, b5, on the Vextended end of the cylinder, B', the two being bolted together, keeping the cylinders, G and B', apart, to form the jacket between them. The inner end of the cylinder, B', is contracted to pass Within a grooved ring or casting, g', the ends of the cylinders, B' and G, entering the grooveV in this ring and being brrazed or soldered to it.

g2, is a ring which is bolted onto the grooved A ring g', to close the end of the jacket between the cylinders G and B'.

Within the cylinder, G, is the centralcylinder, E', having a reduced neck like the cylinder, E, in Fig. 1, to pass through the head,

g3, which closes the end of the cylinder, G, said cylinder having a a'nged ring, g4, to which the head, g3, is bolted.

H, is a coil wound spirally around the cylinder, E', in the jacket formed between said cylinder and the cylinder, G.

All the coils in my apparatus are made to just snugly tit the jackets between the cylinders, so that the wort is compelled to travel in the spiral path between the coils and in 'contact with the cylinders.

The cooling liquid from one source of supply enters the cylinder,E, through the pipe, e', passes to the opposite end of the cylinder, thence into the coil, H, through which it is discharged through the pipe, @which passes through the head, g3, of the cylinder, G. The cooling liquid from the other source of supply passes into the coil, D', through the pipe, d', which passes through the outer shell, A', through the anged ring, b4, and connects with the coil. After passing through the coil to the inner end of the cylinder, B', the opposite end of the coil communicates with the jacket between the cylinders, B and G, and is discharged through the pipe, b.

The-wort passes from the boiler orV hop l jacket through the pipe, 0.7, thence in the spiral path between the coils of cylinders, B and G, from which it passes through the rings, g' and g2, into the space, a8, between the rings and the end of. the cylinder, A'; thence in the spiral path between the coils of the pipe, D', in contact with the outer wall of the cylinder, B', and inner wall of the cylinder, A', and is discharged through the pipe, a9, leading to the fermenting tuns.-

The apparatus, with the exception of the flanged rings which connect the cylinders, is made of copper, and the purpose of bolting the cylinders together in the manner shown, is to render them readily detachable for cleansing, or removing any scales or sediment that may adhere to the surfaces, with -which the wort may come in contact.

In practice, I have found that thedevice,

for a brewery of medium capacity should be in about the following proportions: about ten feet long; the outside shell thirteen inches in diameter; `the cylinder next within it'ten inches; the cylinder, G, seven inches and the inner-cylinder four inches; the coils being one and one-half inches in diameter, so as to snugly fit the spaces between the cylinders, in order to retard the travel of the wort-and keep it in contact with the cooling surfaces a suicient time to reduce the temperature to the desired degree for entering the lfermenting tuns; but it is obvious that the propor- 'tions may be varied, owing to the capacity of the brewery, and the simple form shown in Figs. l and 2 has been found sufficient for a brewery of small capacity and, of course, this forrnmay be duplicated and used insteadof the form shown in Fig. 3, but wouldr of course occupy more space. Itis also obviousthat the cap, 0, may be dispensed with, as its prin- IOO IIC

cipal objectis to conduct the cooling liquid from both the coil and the jacketed spaces around the centraltube to the central discharge pipe,C, in which case an opening could be made in the head, b', andthe branch of the pipe, C', connected to said opening by a suitable coupling; but the form shown is deemed the best, as the cooling liquid, after being partially heated by the passage ot' the Wort, would pass out at all p'oints around the neck of the induction pipe, instead of being compelled to flow through a single opening below it.

What I claim as new, and desire to secure by Letters Patent, is

l. The combination, in a wort cooler, of the outer and inner cylinders separated from each other to form jackets for the passage of the wort and the cooling liquid, a spiral coil within the wort jacket for the cooling liquid,

- said coil and the walls of the jacket being in close proximity to retard the movement of the wort through the jacket and keep it in contact with the cooling surfaces, the central cylinder for the cooling liquid, communicating with the coil, induction and eduction pipes communicating with the wort jacket, and similar pipes toreceive the cooling liquid into the device and discharge it therefrom, substantially as shown and described.

2. The combination of the outer cylinder, havingl closed ends, an inner cylinder forming, with the outer cylinder, a closed jacket for the passage ofv wort, a central cylinder `separated from the cylinder forming the inner wall of the wort jacket,`having a reduced neck passed to the outside of the cooler, and separated from the surrounding cylinder, but

communicating with it through perforations` in theinner end of said central cylinder,the inner andinterrnediate cylinders together forming a jacket for the cooling liquid, the cooling coil connected to the end of the intermediate cylinder and coiled around in the wort jacket, said coil in proximity to the walls of the jacket to compel the wort to travel in a spiral path, an induction pipe at one end of the said wort jacket, and an eduction pipe at theopposite end, to connect with the pipe leading to the fermenting tuns, a pipe to introduce cooling liquid to the inner cylinder, and a discharge pipe leading outside of the cooler for said cooling liquid after it has passed through the inner cylinder and coil, substantially as shown and described.

3. In a wort cooler, the combination of tlie outer case or cylinder, A, having induction branch, d, and eduction branch, a, the ilanged the end of the cooler to receive the pipe conveying the cooling liquids, said cylinder, E, being open at the inner end and beari'ng against the end of theintermediate cylinder, B, and having its end perforated to pass portions of the cooling liquid from the cylinder, E, around the space in the jacket between it and the cylinder, B, the head, b', closing the end of cylinder, B, and perforated to pass the cooling liquid from the jacketed space between the cylinders, E and B, substantially as shown and described.

4. In a wort cooler, the combination of the outer cylinder, having induction pipe at one end and eduction pipe at the other, hanged ring around the open end of said cylinder, an inner cylinder having ilanged ring closing the jacket between the said cylinderand the outer cylinder, bolts and nuts for detachably securing the two cylinders together, perforated heads secured to the front end of said intermediate cylinder, a central cylinder having reduced neck passing centrally through said head,having itsinner end open to bearagainst the concavo-convex end of the surrounding cylinder and perforations communicating with the jacket between the inner and inter- Vmediate cylinders, the cap, C, surrounding the reduced neck of the inner cylinder, the cooling coil, D, connected to the lnner end of the intermediate cylinder and coiled around said cylinder at the forward end, forming a spiral path in the jacket between the intermediate and outer cylinders, the discharge pipe, C', for the cooling liquid, communicating with the space between the inner and in `termediate cylinders, and the branch in the coil passing through the head of the inner cylinder and communicating with said discharge pipe, whereby the wort is compelled to travelin a spiral path in the jacketed space between the outer and intermediate cylinders, and the cooling liquid passed to the inner cylinder and from there partly through the coil and partly in the space or jacket between the inner and central cylinders, substantially as shown and described.

5. The combination of the outer cylindrical case a central cylinder, having its open end protruding through the end of said case, double cylinders intermediate the central cylinder and outer case, Said intermediate cylinders being closed at their ends to form a jacket for the cooling liquid, and said cylinders forn1- ing communicating wort jackets between the outer case and intermediate cylinder, and the intermediate cylinder and central cylinder, the wort supply pipe connected to the inner jacket, the Wort discharge pipe leading from the outer jacket, cooling coils in both the inner and outer wort jackets, a supply pipe for the outer coil, the opposite endof said coil connected to discharge into the jacket between the intermediate cylinders, the discharge pipe leading from said jacket at its forward end, said inner coil connected to the inner end of the central cylinder to receive IOO IIO

the cooling liquid from it', and the opposite end of said inner coil passing to the outside and intermediate cylinder, and between said intermediate cylinder and the outer case, cooling coils in said jackets, the inner coil communicating With the central cylinder and the outer coil communicating with the jacket between theintermediate cylinders, the Wort supply and discharge pipes communicating with said jackets, and the supply and discharge pipes for the cooling liquids, substantially as shown and described.

HENRY E. DEOKEBACH.

Witnesses:

GEO. J. MURRAY, EMMA LYFORD. 

